Home / 354,709,515.83-489,489,648.03-195,936,221.57

Finding the Fourth Proportional to 354,709,515.83, 489,489,648.03 and 195,936,221.57

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Solution

The fourth proportional to 354,709,515.83, 489,489,648.03 and 195,936,221.57 is: 270,386,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,709,515.83 : 489,489,648.03 = 195,936,221.57 : x
  2. Step 2: Convert to fraction form
    354,709,515.83/489,489,648.03 = 195,936,221.57/x
  3. Step 3: Cross multiply
    354,709,515.83x = 489,489,648.03 × 195,936,221.57
  4. Step 4: Simplify right side
    354,709,515.83x = 95,908,752,130,179,936
  5. Step 5: Solve for x
    x = 95,908,752,130,179,936/354,709,515.83
  6. Step 6: Final answer
    x = 270,386,747.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.